/* Copyright 2013 10gen Inc.
 *
 *    This program is free software: you can redistribute it and/or  modify
 *    it under the terms of the GNU Affero General Public License, version 3,
 *    as published by the Free Software Foundation.
 *
 *    This program is distributed in the hope that it will be useful,
 *    but WITHOUT ANY WARRANTY; without even the implied warranty of
 *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *    GNU Affero General Public License for more details.
 *
 *    You should have received a copy of the GNU Affero General Public License
 *    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 *    As a special exception, the copyright holders give permission to link the
 *    code of portions of this program with the OpenSSL library under certain
 *    conditions as described in each individual source file and distribute
 *    linked combinations including the program with the OpenSSL library. You
 *    must comply with the GNU Affero General Public License in all respects
 *    for all of the code used other than as permitted herein. If you modify
 *    file(s) with this exception, you may extend this exception to your
 *    version of the file(s), but you are not obligated to do so. If you do not
 *    wish to do so, delete this exception statement from your version. If you
 *    delete this exception statement from all source files in the program,
 *    then also delete it in the license file.
 */

#pragma once

#include "mongo/base/status.h"
#include "mongo/client/export_macros.h"
#include "mongo/util/net/ssl_manager.h"

namespace mongo {

    namespace optionenvironment {
        class OptionSection;
        class Environment;
    } // namespace optionenvironment

    namespace moe = mongo::optionenvironment;

    struct MONGO_CLIENT_API SSLGlobalParams {
        AtomicInt32 sslMode;        // --sslMode - the SSL operation mode, see enum SSLModes
        bool sslOnNormalPorts;      // --sslOnNormalPorts (deprecated)
        std::string sslPEMKeyFile;       // --sslPEMKeyFile
        std::string sslPEMKeyPassword;   // --sslPEMKeyPassword
        std::string sslClusterFile;       // --sslInternalKeyFile
        std::string sslClusterPassword;   // --sslInternalKeyPassword
        std::string sslCAFile;      // --sslCAFile
        std::string sslCRLFile;     // --sslCRLFile
        bool sslWeakCertificateValidation; // --sslWeakCertificateValidation
        bool sslFIPSMode; // --sslFIPSMode
        bool sslAllowInvalidCertificates; // --sslAllowInvalidCertificates
        bool sslAllowInvalidHostnames; // --sslAllowInvalidHostnames

        SSLGlobalParams() {
            sslMode.store(SSLMode_disabled);
        }
 
        enum SSLModes {
            /** 
            * Make unencrypted outgoing connections and do not accept incoming SSL-connections 
            */
            SSLMode_disabled,

            /**
            * Make unencrypted outgoing connections and accept both unencrypted and SSL-connections 
            */
            SSLMode_allowSSL,

            /**
            * Make outgoing SSL-connections and accept both unecrypted and SSL-connections
            */
            SSLMode_preferSSL,
 
            /**
            * Make outgoing SSL-connections and only accept incoming SSL-connections
            */
            SSLMode_requireSSL
        };
    };

    extern MONGO_CLIENT_API SSLGlobalParams sslGlobalParams;

    Status addSSLServerOptions(moe::OptionSection* options);

    Status addSSLClientOptions(moe::OptionSection* options);

    Status storeSSLServerOptions(const moe::Environment& params);

    /**
     * Canonicalize SSL options for the given environment that have different representations with
     * the same logical meaning
     */
    Status canonicalizeSSLServerOptions(moe::Environment* params);

    Status validateSSLServerOptions(const moe::Environment& params);

    Status storeSSLClientOptions(const moe::Environment& params);

    /**
     * Used by the Mongo shell to validate that the SSL options passed are acceptable and
     * do not conflict with one another.
     */
    Status validateSSLMongoShellOptions(const moe::Environment& params);
}
